/***************************************************************************/
/*                                                                         */
/*  ftconfig.h                                                             */
/*                                                                         */
/*    ANSI-specific configuration file (specification only).               */
/*                                                                         */
/*  Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008, 2010 by       */
/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
/*                                                                         */
/*  This file is part of the FreeType project, and may only be used,       */
/*  modified, and distributed under the terms of the FreeType project      */
/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
/*  this file you indicate that you have read the license and              */
/*  understand and accept it fully.                                        */
/*                                                                         */
/***************************************************************************/


/*************************************************************************/
/*                                                                       */
/* This header file contains a number of macro definitions that are used */
/* by the rest of the engine.  Most of the macros here are automatically */
/* determined at compile time, and you should not need to change it to   */
/* port FreeType, except to compile the library with a non-ANSI          */
/* compiler.                                                             */
/*                                                                       */
/* Note however that if some specific modifications are needed, we       */
/* advise you to place a modified copy in your build directory.          */
/*                                                                       */
/* The build directory is usually `freetype/builds/<system>', and        */
/* contains system-specific files that are always included first when    */
/* building the library.                                                 */
/*                                                                       */
/* This ANSI version should stay in `include/freetype/config'.           */
/*                                                                       */
/*************************************************************************/

#ifndef __FTCONFIG_H__
#define __FTCONFIG_H__

#include <ft2build.h>
#include FT_CONFIG_OPTIONS_H
#include FT_CONFIG_STANDARD_LIBRARY_H


FT_BEGIN_HEADER


/*************************************************************************/
/*                                                                       */
/*               PLATFORM-SPECIFIC CONFIGURATION MACROS                  */
/*                                                                       */
/* These macros can be toggled to suit a specific system.  The current   */
/* ones are defaults used to compile FreeType in an ANSI C environment   */
/* (16bit compilers are also supported).  Copy this file to your own     */
/* `freetype/builds/<system>' directory, and edit it to port the engine. */
/*                                                                       */
/*************************************************************************/


/* There are systems (like the Texas Instruments 'C54x) where a `char' */
/* has 16 bits.  ANSI C says that sizeof(char) is always 1.  Since an  */
/* `int' has 16 bits also for this system, sizeof(int) gives 1 which   */
/* is probably unexpected.                                             */
/*                                                                     */
/* `CHAR_BIT' (defined in limits.h) gives the number of bits in a      */
/* `char' type.                                                        */

#ifndef FT_CHAR_BIT
    #define FT_CHAR_BIT CHAR_BIT
#endif


/* The size of an `int' type.  */
#if                                 FT_UINT_MAX == 0xFFFFUL
    #define FT_SIZEOF_INT (16 / FT_CHAR_BIT)
#elif                               FT_UINT_MAX == 0xFFFFFFFFUL
    #define FT_SIZEOF_INT (32 / FT_CHAR_BIT)
#elif FT_UINT_MAX > 0xFFFFFFFFUL && FT_UINT_MAX == 0xFFFFFFFFFFFFFFFFUL
    #define FT_SIZEOF_INT (64 / FT_CHAR_BIT)
#else
    #error "Unsupported size of `int' type!"
#endif

/* The size of a `long' type.  A five-byte `long' (as used e.g. on the */
/* DM642) is recognized but avoided.                                   */
#if                                  FT_ULONG_MAX == 0xFFFFFFFFUL
    #define FT_SIZEOF_LONG (32 / FT_CHAR_BIT)
#elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFUL
    #define FT_SIZEOF_LONG (32 / FT_CHAR_BIT)
#elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFFFFFFFUL
    #define FT_SIZEOF_LONG (64 / FT_CHAR_BIT)
#else
    #error "Unsupported size of `long' type!"
#endif


/* Preferred alignment of data */
#define FT_ALIGNMENT 8


/* FT_UNUSED is a macro used to indicate that a given parameter is not  */
/* used -- this is only used to get rid of unpleasant compiler warnings */
#ifndef FT_UNUSED
    #define FT_UNUSED(arg)  ((arg) = (arg))
#endif


/*************************************************************************/
/*                                                                       */
/*                     AUTOMATIC CONFIGURATION MACROS                    */
/*                                                                       */
/* These macros are computed from the ones defined above.  Don't touch   */
/* their definition, unless you know precisely what you are doing.  No   */
/* porter should need to mess with them.                                 */
/*                                                                       */
/*************************************************************************/


/*************************************************************************/
/*                                                                       */
/* Mac support                                                           */
/*                                                                       */
/*   This is the only necessary change, so it is defined here instead    */
/*   providing a new configuration file.                                 */
/*                                                                       */
#if (defined (__APPLE__) && !defined (DARWIN_NO_CARBON)) || \
    (defined (__MWERKS__) && defined (macintosh))
/* no Carbon frameworks for 64bit 10.4.x */
    #include "AvailabilityMacros.h"
    #if defined (__LP64__) && \
    (MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4)
        #define DARWIN_NO_CARBON 1
    #else
        #define FT_MACINTOSH 1
    #endif

#elif defined (__SC__) || defined (__MRC__)
/* Classic MacOS compilers */
    #include "ConditionalMacros.h"
    #if TARGET_OS_MAC
        #define FT_MACINTOSH 1
    #endif

#endif


/*************************************************************************/
/*                                                                       */
/* <Section>                                                             */
/*    basic_types                                                        */
/*                                                                       */
/*************************************************************************/


/*************************************************************************/
/*                                                                       */
/* <Type>                                                                */
/*    FT_Int16                                                           */
/*                                                                       */
/* <Description>                                                         */
/*    A typedef for a 16bit signed integer type.                         */
/*                                                                       */
typedef signed short FT_Int16;


/*************************************************************************/
/*                                                                       */
/* <Type>                                                                */
/*    FT_UInt16                                                          */
/*                                                                       */
/* <Description>                                                         */
/*    A typedef for a 16bit unsigned integer type.                       */
/*                                                                       */
typedef unsigned short FT_UInt16;

/* */


/* this #if 0 ... #endif clause is for documentation purposes */
#if 0

/*************************************************************************/
/*                                                                       */
/* <Type>                                                                */
/*    FT_Int32                                                           */
/*                                                                       */
/* <Description>                                                         */
/*    A typedef for a 32bit signed integer type.  The size depends on    */
/*    the configuration.                                                 */
/*                                                                       */
typedef signed XXX FT_Int32;


/*************************************************************************/
/*                                                                       */
/* <Type>                                                                */
/*    FT_UInt32                                                          */
/*                                                                       */
/*    A typedef for a 32bit unsigned integer type.  The size depends on  */
/*    the configuration.                                                 */
/*                                                                       */
typedef unsigned XXX FT_UInt32;

/* */

#endif

#if FT_SIZEOF_INT == (32 / FT_CHAR_BIT)

typedef signed int FT_Int32;
typedef unsigned int FT_UInt32;

#elif FT_SIZEOF_LONG == (32 / FT_CHAR_BIT)

typedef int FT_Int32;
typedef unsigned long FT_UInt32;

#else
    #error "no 32bit type found -- please check your configuration files"
#endif


/* look up an integer type that is at least 32 bits */
#if FT_SIZEOF_INT >= (32 / FT_CHAR_BIT)

typedef int FT_Fast;
typedef unsigned int FT_UFast;

#elif FT_SIZEOF_LONG >= (32 / FT_CHAR_BIT)

typedef long FT_Fast;
typedef unsigned long FT_UFast;

#endif


/* determine whether we have a 64-bit int type for platforms without */
/* Autoconf                                                          */
#if FT_SIZEOF_LONG == (64 / FT_CHAR_BIT)

/* FT_LONG64 must be defined if a 64-bit type is available */
    #define FT_LONG64
    #define FT_INT64 long

#elif defined (_MSC_VER) && _MSC_VER >= 900   /* Visual C++ (and Intel C++) */

/* this compiler provides the __int64 type */
    #define FT_LONG64
    #define FT_INT64 __int64

#elif defined (__BORLANDC__)   /* Borland C++ */

/* XXXX: We should probably check the value of __BORLANDC__ in order */
/*       to test the compiler version.                               */

/* this compiler provides the __int64 type */
    #define FT_LONG64
    #define FT_INT64 __int64

#elif defined (__WATCOMC__)    /* Watcom C++ */

/* Watcom doesn't provide 64-bit data types */

#elif defined (__MWERKS__)     /* Metrowerks CodeWarrior */

    #define FT_LONG64
    #define FT_INT64 long long int

#elif defined (__GNUC__)

/* GCC provides the `long long' type */
    #define FT_LONG64
    #define FT_INT64 long long int

#endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */


/*************************************************************************/
/*                                                                       */
/* A 64-bit data type will create compilation problems if you compile    */
/* in strict ANSI mode.  To avoid them, we disable its use if __STDC__   */
/* is defined.  You can however ignore this rule by defining the         */
/* FT_CONFIG_OPTION_FORCE_INT64 configuration macro.                     */
/*                                                                       */
#if defined (FT_LONG64) && !defined (FT_CONFIG_OPTION_FORCE_INT64)

    #ifdef __STDC__

/* undefine the 64-bit macros in strict ANSI compilation mode */
        #undef FT_LONG64
        #undef FT_INT64

    #endif /* __STDC__ */

#endif /* FT_LONG64 && !FT_CONFIG_OPTION_FORCE_INT64 */


#define FT_BEGIN_STMNT do {
#define FT_END_STMNT } while (0)
#define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT


#ifndef  FT_CONFIG_OPTION_NO_ASSEMBLER
/* Provide assembler fragments for performance-critical functions. */
/* These must be defined `static __inline' with GCC.             */

    #if defined (__CC_ARM) || defined (__ARMCC__) /* RVCT */
        #define FT_MULFIX_ASSEMBLER FT_MulFix_arm

/* documentation is in freetype.h */

static __inline FT_Int32
FT_MulFix_arm(FT_Int32 a,
              FT_Int32 b)
{
    register FT_Int32 t, t2;


    __asm
    {
        smull t2, t, b, a           /* (lo=t2,hi=t) = a*b */
        mov a, t, asr #31           /* a   = (hi >> 31) */
        add a, a, #0x8000           /* a  += 0x8000 */
        adds t2, t2, a              /* t2 += a */
        adc t, t, #0                /* t  += carry */
        mov a, t2, lsr #16          /* a   = t2 >> 16 */
        orr a, a, t, lsl #16        /* a  |= t << 16 */
    }
    return a;
}

    #endif /* __CC_ARM || __ARMCC__ */


    #ifdef __GNUC__

        #if defined (__arm__) && !defined (__thumb__) && \
    !(defined (__CC_ARM) || defined (__ARMCC__))
            #define FT_MULFIX_ASSEMBLER FT_MulFix_arm

/* documentation is in freetype.h */

static __inline FT_Int32
FT_MulFix_arm(FT_Int32 a,
              FT_Int32 b)
{
    register FT_Int32 t, t2;


    asm volatile (
        "smull  %1, %2, %4, %3\n\t" /* (lo=%1,hi=%2) = a*b */
        "mov    %0, %2, asr #31\n\t" /* %0  = (hi >> 31) */
        "add    %0, %0, #0x8000\n\t" /* %0 += 0x8000 */
        "adds   %1, %1, %0\n\t"     /* %1 += %0 */
        "adc    %2, %2, #0\n\t"     /* %2 += carry */
        "mov    %0, %1, lsr #16\n\t" /* %0  = %1 >> 16 */
        "orr    %0, %2, lsl #16\n\t" /* %0 |= %2 << 16 */
        : "=r" (a), "=&r" (t2), "=&r" (t)
        : "r" (a), "r" (b));
    return a;
}

        #endif /* __arm__ && !__thumb__ && !( __CC_ARM || __ARMCC__ ) */

        #if defined (i386)
            #define FT_MULFIX_ASSEMBLER FT_MulFix_i386

/* documentation is in freetype.h */

static __inline FT_Int32
FT_MulFix_i386(FT_Int32 a,
               FT_Int32 b)
{
    register FT_Int32 result;


    __asm__ volatile (
        "imul  %%edx\n"
        "movl  %%edx, %%ecx\n"
        "sarl  $31, %%ecx\n"
        "addl  $0x8000, %%ecx\n"
        "addl  %%ecx, %%eax\n"
        "adcl  $0, %%edx\n"
        "shrl  $16, %%eax\n"
        "shll  $16, %%edx\n"
        "addl  %%edx, %%eax\n"
        : "=a" (result), "=d" (b)
        : "a" (a), "d" (b)
        : "%ecx", "cc");
    return result;
}

        #endif /* i386 */

    #endif /* __GNUC__ */

#endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */


#ifdef FT_CONFIG_OPTION_INLINE_MULFIX
    #ifdef FT_MULFIX_ASSEMBLER
        #define FT_MULFIX_INLINED FT_MULFIX_ASSEMBLER
    #endif
#endif


#ifdef FT_MAKE_OPTION_SINGLE_OBJECT

    #define FT_LOCAL(x)      static x
    #define FT_LOCAL_DEF(x)  static x

#else

    #ifdef __cplusplus
        #define FT_LOCAL(x)      extern "C"  x
        #define FT_LOCAL_DEF(x)  extern "C"  x
    #else
        #define FT_LOCAL(x)      extern x
        #define FT_LOCAL_DEF(x)  x
    #endif

#endif /* FT_MAKE_OPTION_SINGLE_OBJECT */


#ifndef FT_BASE

    #ifdef __cplusplus
        #define FT_BASE(x)  extern "C"  x
    #else
        #define FT_BASE(x)  extern x
    #endif

#endif /* !FT_BASE */

#ifndef FT_BASE_DEF
    #ifdef __cplusplus
        #define FT_BASE_DEF(x)  x
    #else
        #define FT_BASE_DEF(x)  x
    #endif
#endif


#ifndef FT_EXPORT
    #if defined (FT_DLL_EXPORT)
        #define FT_EXPORT(x) __declspec(dllexport) x
    #elif defined (FT_DLL_IMPORT)
        #define FT_EXPORT(x) __declspec(dllimport) x
    #else
        #ifdef __cplusplus
            #define FT_EXPORT(x) extern "C" x
        #else
            #define FT_EXPORT(x) extern x
        #endif
    #endif
#endif


#ifndef FT_EXPORT_DEF
    #if defined (FT_DLL_EXPORT)
        #define FT_EXPORT_DEF(x) __declspec(dllexport) x
    #elif defined (FT_DLL_IMPORT)
        #define FT_EXPORT_DEF(x) __declspec(dllimport) x
    #else
        #ifdef __cplusplus
            #define FT_EXPORT_DEF(x) extern "C" x
        #else
            #define FT_EXPORT_DEF(x) extern x
        #endif
    #endif
#endif

#ifndef FT_EXPORT_VAR

    #ifdef __cplusplus
        #define FT_EXPORT_VAR(x)  extern "C"  x
    #else
        #define FT_EXPORT_VAR(x)  extern x
    #endif

#endif

/* The following macros are needed to compile the library with a   */
/* C++ compiler and with 16bit compilers.                          */
/*                                                                 */

/* This is special.  Within C++, you must specify `extern "C"' for */
/* functions which are used via function pointers, and you also    */
/* must do that for structures which contain function pointers to  */
/* assure C linkage -- it's not possible to have (local) anonymous */
/* functions which are accessed by (global) function pointers.     */
/*                                                                 */
/*                                                                 */
/* FT_CALLBACK_DEF is used to _define_ a callback function.        */
/*                                                                 */
/* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */
/* contains pointers to callback functions.                        */
/*                                                                 */
/* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable   */
/* that contains pointers to callback functions.                   */
/*                                                                 */
/*                                                                 */
/* Some 16bit compilers have to redefine these macros to insert    */
/* the infamous `_cdecl' or `__fastcall' declarations.             */
/*              */

#ifndef FT_CALLBACK_DEF
    #if defined (FT_DLL_EXPORT)
        #define FT_CALLBACK_DEF(x) __declspec(dllexport) x
    #elif defined (FT_DLL_IMPORT)
        #define FT_CALLBACK_DEF(x) __declspec(dllimport) x
    #else
        #ifdef __cplusplus
            #define FT_CALLBACK_DEF(x) extern "C" x
        #else
            #define FT_CALLBACK_DEF(x) static x
        #endif
    #endif
#endif

#ifndef FT_CALLBACK_TABLE
    #ifdef __cplusplus
        #define FT_CALLBACK_TABLE extern "C"
        #define FT_CALLBACK_TABLE_DEF extern "C"
    #else
        #define FT_CALLBACK_TABLE extern
        #define FT_CALLBACK_TABLE_DEF /* nothing */
    #endif
#endif /* FT_CALLBACK_TABLE */


FT_END_HEADER


#endif /* __FTCONFIG_H__ */


/* END */